Thoughtcrimes (2003)

Freya McAllister suddenly starts hearing voices in her head on the night of her High School Prom. From then on her future ends and she is diagnosed as a violent schizophrenic and committed to a mental hospital where she spends the next eight years of her life in mental madness. One night Dr Michael Welles arrives telling Freya that she isn't crazy but that her voices are the thoughts of everyone around her. He teaches her to turn her telepathic powers into a powerful gift. What he doesn't say is that he works for the National Security Agency...